[Pkg-samba-maint] Bug#568201: samba: Samba segfaults when using domain "write list"

[Ben Hay]

Package: samba
Version: 2:3.2.5-4lenny8
Severity: normal


Following an upgrade from Etch to Lenny, Samba shares were no longer available.
The system generated many emails with subject "Panic or Segfault in Samba"  (sample below).

I am able to work around this by removing or commenting all "write list" lines.
ie:  write list =  @TSLGROUP+Domain\ Admins

important bit from sample email:
[Thread debugging using libthread_db enabled]
[New Thread 0xb7a14a00 (LWP 13442)]
0xb7f0c424 in __kernel_vsyscall ()
#0  0xb7f0c424 in __kernel_vsyscall ()
#1  0xb7b506f3 in waitpid () from /lib/i686/cmov/libc.so.6
#2  0xb7aee46b in ?? () from /lib/i686/cmov/libc.so.6
#3  0xb7cda4ad in system () from /lib/i686/cmov/libpthread.so.0
#4  0x08201ff9 in smb_panic ()
#5  0x081ecd73 in sig_fault ()
#6  <signal handler called>
#7  0xb7f0c424 in __kernel_vsyscall ()
#8  0xb7ae0640 in raise () from /lib/i686/cmov/libc.so.6
#9  0xb7ae2018 in abort () from /lib/i686/cmov/libc.so.6
#10 0xb7c1bb45 in _talloc_steal () from /usr/lib/libtalloc.so.1
#11 0x0823c59b in get_group_map_from_ntname ()
#12 0x082390df in pdb_default_getgrnam ()
#13 0x081b4350 in pdb_getgrnam ()
#14 0x084a9bb1 in lookup_global_sam_name ()
#15 0x081b966c in lookup_name ()
#16 0x081b9bbf in lookup_name_smbconf ()
#17 0x08414322 in token_contains_name_in_list ()
#18 0x084143c9 in is_share_read_only_for_token ()
#19 0x080c192a in change_to_user ()
#20 0x080e2f0e in make_connection_snum ()
#21 0x080e3d41 in make_connection ()
#22 0x08431d74 in reply_tcon_and_X ()
#23 0x080de146 in switch_message ()
#24 0x080dfc91 in smbd_process ()
#25 0x080a747f in main ()


-- System Information:
Debian Release: 5.0.4
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-2-686 (SMP w/2 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages samba depends on:
ii  adduser         3.110                    add and remove users and groups
ii  debconf [debcon 1.5.24                   Debian configuration management sy
ii  libacl1         2.2.47-2                 Access control list shared library
ii  libattr1        1:2.4.43-2               Extended attribute shared library
ii  libc6           2.7-18lenny2             GNU C Library: Shared libraries
ii  libcomerr2      1.41.3-1                 common error description library
ii  libcups2        1.3.8-1+lenny7           Common UNIX Printing System(tm) - 
ii  libgnutls26     2.4.2-6+lenny2           the GNU TLS library - runtime libr
ii  libkrb53        1.6.dfsg.4~beta1-5lenny2 MIT Kerberos runtime libraries
ii  libldap-2.4-2   2.4.11-1+lenny1          OpenLDAP libraries
ii  libpam-modules  1.0.1-5+lenny1           Pluggable Authentication Modules f
ii  libpam-runtime  1.0.1-5+lenny1           Runtime support for the PAM librar
ii  libpam0g        1.0.1-5+lenny1           Pluggable Authentication Modules l
ii  libpopt0        1.14-4                   lib for parsing cmdline parameters
ii  libtalloc1      1.2.0~git20080616-1      hierarchical pool based memory all
ii  libwbclient0    2:3.2.5-4lenny8          client library for interfacing wit
ii  logrotate       3.7.1-5                  Log rotation utility
ii  lsb-base        3.2-20                   Linux Standard Base 3.2 init scrip
ii  procps          1:3.2.7-11               /proc file system utilities
ii  samba-common    2:3.2.5-4lenny8          Samba common files used by both th
ii  update-inetd    4.31                     inetd configuration file updater
ii  zlib1g          1:1.2.3.3.dfsg-12        compression library - runtime

samba recommends no packages.

Versions of packages samba suggests:
pn  ldb-tools                   <none>       (no description available)
ii  openbsd-inetd [inet-superse 0.20080125-2 The OpenBSD Internet Superserver
pn  smbldap-tools               <none>       (no description available)

-- debconf information:
  samba/run_mode: daemons
  samba/tdbsam: false
  samba/generate_smbpasswd: true